Assichtob to automatic electric



T E. MEYER.

AUTOMATIC TELEFi APPLICATION FILED rest 9, 29:5

fiNE SYSTEM.

RENEWED MN. 29, IBIS.

'PatentedAu g. 31,192c

3 SHEETS-SHEET I.

ham/T02: Tm qr/E ELMEYER HTTOQNEV Y. E. MEYER,

,wmmmc TELEPHONE SYSTEM.

APPLHJAE' UN FILED Hi8. W 5 RENEWED IAN-29,19 9

Patented Aug. 31, 1920.

a SHEilS-SHEET 2.

Arramww T. E. MEYER.

7 AUTOMATIC TELEPHONE SYSTEM. APPLICATION EILED' Has. 9. 1916. RENEWEDml. 29. 1919.

1,35 1 ,53 1 Patented Aug. 31, 1920.

3 SHEEIS5HEET 3.

2% a 0i (R v 4 A TORNEY trunks.

Subgroup e mm, on;mpckwgmom; e tezeemmmn onmmem.

135mm. ffs gem Aiaplidatton 111:1 1516, genie; Kai

fbcdlwiwut it may 00mm: 7X 1 il Be it known that I, Tmtuvn' E. incitizen of the unatewsmes of Ameri n, and a resident "of Lonflqmd',cmmty of-Dli page and State pf Illihpigjhtiveinvefltd certain new Til-ha11sefii1f--Impr0vements ifi Automatic Telephbne System13, of which thefollowing is a'specificetibni My invelitidrlyi'elates to automatic tale;phone systems and coneernsitse'l f more pa'r t-icuhti'ly with these?autometje: sysfeizhs i h m m id i n inp -e l m pm mes t "1 w It is 6 fibl SiIF-SY Y v "-1' abovegenegfl ehai-eeteflth pi'pvid means; forextending cells ier; dead korfz chitli'ged numbers to at opemtqg'vimsb-feel1et1 tteflie In 5a, systex'n inebmmanmse the connectorswitches having'k'atccesg 5601 w cerg tain group of partylinee atedividedfinto" sub-groups, the beaks-19f the swat-3.1331113 grnups beiu'teqtineetedin ,mi ilti. lei "Eebhj fedmlectors 'm at-WI edtwxth ir'diiferent .freqq'enybfinpgmg exit-rent (Sop-1" a party line In. case1.1substiitiqfl on 'ithy" without ."n gessi tttiing any 0 and byprm'icingj adtlition, special 7 line is remoy e diei "theliumber dhaflgdi-tlgebank multiple from the correspondmg way incgm mg cults for tli rlisddxiheeted ,whi'clfwill be hereinafter 'ful 'ie. egne' einiuaiy -29, rain.sum 1:. amaze;-

beehflcessari-heretofore t I- profidQ-yreiembh; whi h group of pettyhnesv a tangle graup ofeon'nector swltches; each connectorswitplrcbntaining as many multiple contacts for; each, arty mmzevnn;mnmornomenq, new, 1159mm To .Lfi bomne meme anopemtet to answer callsfat: that substation; l I

Tq'beqm-plish the foregoing and other useful ends my inventioneomfu'ises means y explained anardesembedl eferenoe, bei'n hadtp theaceomp anying rawin injv ichFi gures 1, 2-g1td 3;,- taken him er withthe lines at the ertiis thereof 'ir'i fliihement, representc1iagrammaticallya ocvmple'te zcircflit connec- [tion between av callingsubstation" A and certain' multiple .contacts at theexchange allotever,ha ve been disconnectect iroxhr tha line 40f substation Atend ereconnected accordi-ing to my invention with a tpim'k linete'rminethlgi'ue keyK at an opemitbns position. The; said; commotion has; been 4estirblis'hed nector switch F.

Aime beet any suitab e or I ap roved t ish patent to, G; MM'tin, N0.1Z419- f 1910 efli ciency'hy com the smell lsitibjgppiiias'i .and 'asrepresented hereim eomprises the reether 2; .tg'ansmittei 3; switch hook4 'r'1nger" wide n pr' actieable met ed ef givitigand '5, -suir1'bonclenserl 6. i Being an automatic .su'bstation, there istls plotideda; pail 6f impulsesprings i" and 8 and an impulse -lines'witchC,wh1chmey be of the general type of line switch 5 showminBritish patent to Refeming now'te t l the subetetion um, um npqfly f thsg1)! diga I M paint to 0. in nntmgl 1 mrm in fiflm- PM mm I m .m: I

A that: ummmfarwmamul mfim; thnw ag lanuuxfimrymn 12. Thu-cum an 1 I H Anu-l4 ..m' 1 -u- 1 1 I antic mmnit of winding: I npmh group of m; Ema I.a w map at gendentoflhammgnlwwiminolwm mammal-s H gpm- :1 vifladwithmmnainn-saluting Hm! em 15 the plungur arm 13 ml e cpl-oil almlfim oftinghlg cnrmnt mmpunding the so 14 whileth winding 49 Is only strungparty wanted. This animating me'ansiaillusenough to operate the aqmamre14 Ind to tutu! in Fig, B and cqmprim the relays hold the pllmfi" arm 18m an mind po- 115 and Ill madman] with the mambo:- F. .sition afiar itbeen upelabed 'tha pulh Winn g mnocmr witch mmh om cflnumtur in winding.Tlmuimuit of the pa Mn wind- F is mind n mlwtar witch such as the u ingis continua] by the armgture 15 0 E selector aw? Emmedflw mlaysl1b-1lfland the line 38 m um on will in unwanted and the relay op-emted d2- vdtht m auxiliary wm 113 12. i fly: 6:: upon thg level to which the wi ersu: 1i: arm 13 is opgw the lnpger w m qelwmr mmh an z'aiiarl. This win ingen: into a bank of ingl, rung fihe readily unclaumod fi-mn a minim-slimu! an springs 88,41, 43, anti. imw on w m the ahnwingai bunk mutantsnftha 191mmmapectivuly, with ummcts 40 I V and switch E in F 1. Gamma a,b, and a are #5. Although only one set of springs mumad to be first m ofcontacts in the unmet: M} slmwmit istohe and first 11ml. (mum 4: B and aare asan @003 flux each hne switch is proviegi will mama! to ha :11:fiat me;

a plurality at such autamlmh sat tom the manual 1M. The rim mutantsu anda and terminal of a trunk Kine landing to a who: a and 6" m WW and fiflrm uuribnh similar to the a'mbnh E. terminals of oumlunwmifi M4127 W51Each tum]: 15:14: is connected in multiple: f to cplmmhw F. The mmeontwts b u the cnrreslmnding springs oi all tzha lme b, haw-wet am notmammal! but form no new 0 the m whmh 1a mama by berminmh u-f t: 61 andas: me mastuwhimil. mend. to m1, mlm- 1M Tim mmmimh Bigot era] of mummi-F by way oi mhga IE5 and time I5 that dimmed m t 120 11 5, The mm amen1%. 26,801 of 19 5, flllfl'fi armed to; in tl'ua rat 0 award law]: anconfirmed 1 15 being, homer, marginal-1 of tin in a similar manner andform t 9f hr Enclosed m Bnflah to trunk 111m embonflingfio who! 11! mi49. The nimdlizfi 11' upemfls Mm miflfloflilfl. ThnhndiqnoflmgwpofMFin-m The the master switch as h: well knmgn mto remaining 1mmin flu: bank of mlecbm" E. maintain the pl. K M 311 31 ldil .8 ourexample, 15min time Ind four, um Fill switched]: ion J flan materialwimd similar to bulbous and new unit min of an hm. fim'm term of trunklime awn/fling to h 021190001 E is "i n!!! HI-1T age at aalacbur Win11dimmed in 11mm! Hm I 1 13. it: cf ma ger- I! H?- 811, Inf ull-A If 'QfiMug in March 13, $08, to Earth, n mil Um Shins Paint Hm. 3mm,mficlmn;,bcry wflr,uftheputwnlar gnnbadlimmhll 1906,!0 Keith, ErintypemBnhflnfifnitnflmiuwmarl Er'wlmn; beinghnmm, mm M55171mnfio'lalaphmna'. ,Nmflmnf as 1914. uthm' 5th: elem? ww Mi Gu -s anmmiseaa lmknimiimm o,Q8TDul'1M&.--- I flu lam-imam rows: or Isak whwh m jnm mute: F a bum 0! mm nen duptuflmbeengngadiayaaatnrlw an;mngedinhnrimutalmormumwhieh R9 61', and 66 earn: upun a shalt notmtamnmaflpiedwbe i byaamt'of no alumni] whiehhna mtimlwnwipm'ailJLmminimal! wolladlrym51mdam- (mt-ahnwuluhlnhhpa In mmmut MUL- 13mmwutmllodbythnmhulmmmflundu magi! Um. Thu flmmthm mrymnhnflsd flamingoithaswituhm I .tlm 101-. In ll medium 0f thn double wound line M 411.firm thmis 11m 1mm] 1:0! 1

0 contacts in flu I5 contacts arranged in horizontal rows .or levels andnfdaiptel to be engaged by" 1 set of wipers 221 and 222 whichfereicitrried upon the some shaft with the firstnientioned set. Thetwosetsof wipers-ere, of course;-

operated siin'ultaneously to [e -corre-" p din e Q m ein we??? banks,only orig-setbbiiigiend'ered- 1 for si aling and telkiifgyiirposeshowever,

as wi ep'peejr morerolenrlghereinetter; 151;

To continue With'th I connector F, the veriou's meet the switoh.

are controlled time h t e mediurn ofmhe double woundline y 100;Thens'ual'sitl switch wipers, 141 :end 142 iereieonfit lled by theprivate magnet 10? m' thereguler manner. Means for laei-mitti1ithesmtthto be restored tonorma sitirin eprovicledjin the release magnet ll'whioh, upon-energiz: ing, withdrawsthe retaining -pe; wls fromthe'shuft and restores the side switch wipers to their first gositi onSprings l43nnrt144 are controlle bythe slmit, and mgrke contact withtheir respective oontectpoints only when the suid'shaft has been "re'sedone or; -more steps froin normelposition. 11elays 102 end 106ureoslow-egtiug,-=thet is, they are slow to retract their *nrmetureswhen their respective ener 'ng circuits are broken. Various other reeysnot'novf speeifically mentionecl will befrefe'rre'd'to 1n thedetailed description of the )0 creation. I

Returning now to a more etailjed description of the wi pers' and bankcontacts 'shown in Fig. 2, it will be seen thet'the co F is providedwith a. privnte 'wiper m'th-i cated by'referencechoreoter 20351111 withtwo sets of line wi tively by reference araetere 2011- 20? and 221-22;The private wiperifllltt is} 111 service irrespective of theqgirtyiea'lled wbile. 1 but one set of line wiper-sis in servicent n;given time, as determined by-the operat on of the role 8 115 andlitybefore mentioned..

207-'-208-209 ere located the lower :benk of connector F -while the setsutbnnks con-- tacts 22el-225 fluid 227-.228' a.rein theiippe'rj' bunk.Corresponding setsof contncts in the upperand lower banks ere normallycon! nected in multiple asind cated by the eon-' ductors extending fromeontaghaet 2215228 to the line contacteofoet At some point inthemultiplethenormal conductors exten'gl' n to the various line's. newcessible to connector ample, 233 are shown connected directlyto' contactset 204205,--206. Provision ie'msrde whereby either the" upper or lowereat of line terminals oorres jonding 3021? given in 1 be disconnected inthe multiple and them' fore from the normal conductors of-tlintline; andwhereby a set of terminals, thus-diseon nectecl, may be connectedto a;so onlled trafiic escription- -oi' the.

mittently o} emting the ,ri nnclother sz inilar relays, anil diusysignal- 1n meme r ere, indicated, TBSPQC? are attached. 'Forenthe normalconductors 231.,232l 'und trunk, represented herein by eonductors 234and 235.

Thefimfiie "trunk ivith other singilur trunks; may be .extenrled to enopemtors po' 8015 nentling. to the exchange' and there .terminn'tmg nthe individual line switeh O.

Z11 u i n A and A e d-V the l ne gSWltCl'l C" may eimilerto substation Annrlghneswltch 05(F1g. '1), already deserlhed, exceptthat the ri rs atsubstatronsA and, are arrange to-respond to diflerent 'freqpencies ofringing Y current. i

e For supplyingcurrent for operetin and t lking purposesl'have shown a'lure ity of batteries B, B ete, eaeh battery mving one terminal.gronndedJ It will be understood that in V uctnel preeticetheremight'well be but one-suoh'battery. "For supplying signa -1 R? an BA Itis understood that thesegenera'tors ,sfigly currents of iiiiferent-"frequency erenee characters 1v and Tindi cate, respectively,- aninterrupter for inter- V eving givenngenerel tionfof: the

a-apuretus, '1 willlnowrocee to an exinfill-151011 of'ltheroperationofthe same.-

for the purposes of thiei'ex'planetionr it W111. be essunieil that thesubscriber at sub stat on A des res :to call'tho et lsuhetetion "A",which "Substation hasbeen disconnected amt-the bet of contacts 2%n225tflllottedthereto in the bank of well knou n inf-the art, having beenfully described in the p i1hlieetione 'referred= to its operation willbe described in a more on ess generalmsmner, the details being given onhwhen they have to do 'with' the nppliontioh oiwthepripciplee-of-invention.

:JUpontheremora'l o fth'e receiver at enhs t-42.131011 1 L preperatory'to making the cell, a circuit. isoem'pleted overthe lineconducxt'ors 361enk1 37- for' the line-winding 88 of individual lineswitch C. Gurrent flow in line winding 38.-resul tsi n t he nttmotion ofarmature I5, thereby -.cojmpleting a eireuit for the pnll-in winding '17andythe auxili'n' winding 12 i series; By, the energizeti ii 1 ofthe-pulle n winding the plunger" arm-e 13H nnct the cut-105 armature 14are attriicted, Y the forinerthnough "the medium- 6f its pli m ge'r,ioremg the eprings 39, 41,1 13, and 4:5

' relay 109' not eurre'ntI heve shown t'wo generators :eonnector-E,hae'been jconnectelto treflic "trunk 23%235; Intitmuch aeu'great dealgoi'the epparatlis'shown herein is old and inbo a game" v with mmmm43512, 1!, and ml '0 Intel" dim uuuquu maflnsoondmtflafiauflm mm: tab 1:mm in the Firmswitch 0.

a It willbamtlmthno mndthncutof? may!" hmuh tin it o 13m wind- 88, butthe armature: 16 in mm m by mm: flmr in tho 1:. v 1 guy winding 15!.Upon the enmplqta gtmu. mun of theplupger mm 18-, Hm vqnqllng 19 isshort. cmwrted tlwmbiwyw by means of the wall imn-wn lHE-hflil or afurther mlenfion of armature 1|! to ylluw aim-s im establijahin a ho"dream for wigdm is which wtl dqcnbrg. d 45 11' Q v\ n o flijmn n withcan? and 46 6M line condunwrs 36 am! are when 150 the line relay 4? oftha 004mm- E. pup

eneqiialng, hm.- mlny 47 oumpmtes a eiwm for sow actin relay 4S whmhupon ene bring in mailmmplahaa a 1101 cucnit or hna mi which may be madas 5011mm: gmund at 6*, contact 21.

h ding hold-in :5 and 5M, ounfiucfi Q2, sprin 41, a

. wmdgn m to battery m I g windmg *9, as Minn WW6, mtamsths plunger arm13 and elm-04f armature 14 in .upemted inn. A hmmh of the above holdincnmit extends from s'pflng 11 by way 0 eanductor 50 to multiplc flushmmtncts in the banks of wanna-m witches im-i was to the 11m 91 summon Ahyw hagrmmd pomntmlnnflmetut' contwts til]: 3%:1 film iamada bung; toin.- ccxmi' ca y Gent-o 5p 4:; w i fil mm 4! the master E MW:

0 mudinthn lkuovmqmazm h 1e plunger: of fltbfl: lme m flu; groupinfiofpositinnfiafqm the terminals of a mm id!!! trunk 11m e hvegoriugtum: have when u! mt lam-imam v01 whmh 111 this can 1: d lave!hnk'mtucia a,

minkand aim ln. mmml: finitmagnet. 4'10. filo and of the lu'iu mi pulmtha rainy dflflilnu'gim. than! elmmfi khnhufmmlwntnmd; mmnguatmdwcm wemu 1 1 W qua-i muting 1'11 111m. A: ism]! throw -1 yaten'upts Lta mmcirmut and also 1h! oakmg cimu.it oi the M at army enm'gmntion the inlathe: dammit, hawm'er, Bein gamma by an m 01 pzivwte wiper fii whilapassing mmt busy or gwundcd M mm. Ans-anon, thawfunmuflmtmtwlpm'mmhwununl n at] m: mmzmt the armnfzum (If m why 55 with?! 0pm wim'y magnet uimmmm l'! v' i t; upon Him mm Im idIe trunk line, assumed to be m thepresent use tlm tum line extending to master F Q}. Upon sing, the has: 15% also elm 5 cl FUJI?! film line swituh rah 58, whwh lame; my c ea:-tepdqd lime madam 3G and 31 train the wind oi Hm relay M and. flu'thare44 temls I E5 of wipers M and 13B and eonflmetnrs 27 t0 the line min;100 oi cnmwtm F.

Tim ling re ln 11% is mm em imd over the line mrcqut u mlutling 2mm (m Aand. u on at.rmnt mg 1ta axnqwmm, an cn'cmt 101v i111: 519w m: mg tiny102. B m, upon max-32min mompilmeg a hflklil}; uiicuil for time lina awH 1 rah 53 of se mm E and tha holding win mg 01 line switg-h G MMilan's: 'mmd at G. 0011mm: 5111-1 180 and 13 winding of relay 116, commun" H9 bunk mm: b, mil Wl flr '5 60 wire 'Imutmn i4, Whfll'B the airatt. dwi-da, h ax by my of 00mm: sprin B0 and B1 and; 3m

III I! athur L '-II 4 H 1 Of of! normal pmgmt: 53 and inmrppm' umtnc: HEta mm 1mm 95-, when; it aim the: previously dsnrilml homing firm 12 0d13m:

nlxmt tan he 011mm};- mt nzmtant. spa-321g; aw uqd $1 nightmmug m v 45.

a 1101s med by mm ow im the shame duca'i 1 lmilflmg flimit and M-tmctiug its dsbumium the set uf wipm: and the 0f cmglib totliounmrliali. high mot v a re A a nu pawl 11 .a tha zztiofl multipln mummade 11% "a 0111' the holding Jxirqmit file mluys 11B @1111 115 am ofmflmr lnw The ddliny uuham'ibm' It mlnhtilm A may now apmruh his caningdenim in acmomdame with the imam! M the claim number, Insulting at thisof film ufiun, liafilm' iiomoflmn why 1 0f M5 1 1; Mann? tlw 111: In;lands pm im mm ground mt G to the min]! 100 II Theyftical magnet "thirdwiper 142 iii the 229 re t ji1fit 1 1 5- i fiY iiWnPPB hank contgiqts224; an 225; respectively,

the same time th w'i'""ts 261 202;

contacts 2 205 p circfiitfof ringhig-flay 109; now closed *at is openwhen vViWrsEadVandgdWo third tlid'op'irator that has received. ByQpezqtifig th l ia lithefopemtor may hridgehi head'set acrofs' thetrunkponducto'rs' 234 (1)235. Conversation may the trgm smitt f ughthawmdings hat h Ximiiiii r' lanes 1118 fe- @iY i, n t

I 4 IB' cam'm a igimne less than thefin'e jfeitlied in infEhe siuh groupis before, Assuming the' The callin si'ibseribor ma now operate hiscalling evice in accor ance with the remaining two digits of the desiredvnumber which two digits are the same as the last two digits of thenumber of substation A previously called. It follows that UQI1DGC- tor Fis operated precisely in the manner before described, the two sets of\vipeis being raised and rotated onto the same sets of contacts asbefore. Now, however, relay 115 being energized instead of relay 116,the set of line wipers 201 and 202 is rendered active while the set 221and 222 remains open at contacts of relay 116. The ringing relay is nowoperated intermittently to pro ject ringing current from generator R outover the line extending to substation A to signal the called subscriber.Upon hearing his bell the subscriber at substation A removes hisreceiver, thereby completing, at the first de't nergization of theringing relay, a circuit for the back bridge relay 114. The back bridgerelay, upon energizing, operates as before toclose a circuit for thering cut-oil relay 108 whereby the ringing operation is stopped. Themethod by which conversation may-be held between the two substations andthe connection finally released being obvious from the drawings and fromthc previous description it is not thought to be necessary to go furtherinto theldetails.

Nor will it be necessary-to describe in detail the operation when a busyline is called, it being well known that in a connector switch of thegeneraltype described herein, when the test wiper stops on a busy orgrounded test contact, the side switch wipers are locked in secondposition to pre vent connection with the called line. Also, by theoperation of the busy test relay 105 a distinctive tone; from the busysignaling machine T is transmitted over the calling line by which thecalli subscriber is informedthat tbe wanted l ne is busy.

It willbe seen from the foregoing that I have devised a simple andeilicient method by which a single group of connector switches may beadapted to serve a group of party lines without omitting the desirablefeatures of selective ringing and trafiic trunk service, thereby tendingto increase the general efficiency and practicability of an automatictelephone system,

While I have found it convenient, in

party lines each having so currents of difierent explaining myinventlomto show a certain specific embodiment thereof I do not wish tobe held strictly to the exact form shown herein, for various adaptationswill no doubt present themselvesto persons skilled in the art. I desire,therefore, to include and have protected by Letters Patent all forms andmodifications of my invention which may come within the scope oi the upended claims.

Vhat I claim as my invention is:

1, In a telephone system, n party line having a lurulity of substations,signals at said su stations res onsive to signaling currents ofdifferent ciaracter, a multiple line terminal corresponding to eachsubstation, a connector switch havii'ig a plurality of movable terminalscooperating with said line terminals, means for operating said connectorto bring its movable terminals simultaneously into engagement with saidlino terminals, sources of signaling currents of different character,and means for selecting a movable terminal and a source of signalingcurrent whereby said substation signals may be operated selectively.

2. In a telephone system a plurality of bstation signals responsive tosignalin character, a fixed multiple terminal at the exchangecorresponding to each substation of each line, a connector switch havingmov able terminals andmeans for operating them to simultaneously connectwith all the fixed terminals for a given line, sources of signalingcurrents of different character, and means for selectively associatingsaid signaling current sources with the-connected line through themedium of selected movable terminals whereby substation signals may beoperated selectively.

3. In a telephone system, a plurality of partylines each havingsubstation si mls responsive to signaling currents'of di erentcharacter, connector switches for extending connection to said lines,multiple terminals for said lines in said connector switches, therebeing a separate terminal in each connector for each substation on eachline, movable terminals in each connector and means for operating themto simultaneously engage all the multiple terminals of a given line,sources of signaling currents of different character, and means forselecting the roper signaling current source and more le terminalwhereby said substation signals may be operated selectively.

4. In a telephone system, a party line having a plurality ofsubstations, signals at said substations responsive to signalingcurrents of difierent character, a multiple line terminal correspondingto each substation, a connector switch having a plurality of movableterminals cooperating with said line terminals, means for operating saidconline extendin from said selector to said connector an having aplurality of terminals in the selector, means for operating saidselector to connect with one of said trunk terminals, and meansdependent upon the terminal connected with by said selector forselecting one of said movable connector terminals, said last meanscomprising a relay for each movable connector terminal.

13. In a tele hone system, a party line having a plum ity of substationsprovided with signals responsive to ringi currents of differentcharacter, a fixed mu tiple terminal corresponding to each of saidsubstations, a connector switch having a movable terminal cooperatingwith each fixed tenninal, sources of ringmg current of diilerentcharacter, one for each movable connector terminal, a selector switch, atrunk line ex tending from said selector to said connector and having aplurality of terminals in the selector, means for operating saidselector to connect with one of said trunk terminals, and meansdependent upon the trunk terminal connected with by said selector forselecting a movable connector terminal and the correspondin ringingcurrent source.

l-l. In a telephone system, a party line having a plurality ofsubstations provided with signals responsive to ringing currents ,ofdifferent character, a fixed multiple terminal corresponding to each ofsaid substations, a connector switch having a movable terminalcoiiperating with each fixed terminal, sources of ringing current ofdifferent character, one for each movable connector terminal, a selectorswitch, a trunk line cxtendinc from "said selector to said connector andhaving a plurality of terminals in the selector, means for operatingsaid selector to connect with one of said trunk terminals. and meansdependent upon the trunk terminal connected with by said selector forselecting a movable connector terminal and the corresponding ringingcurrent source, said last means comprising a relay for each movableconnector terminal,

each relay adapted to close connections 'for its associated movableterminal and the corresponding ringing current source.

15. In a telephone system, a plurality of party lines, each havingsubstations with signals responsive to signaling currents of differentcharacter, selector and connector switches at the exchange, banks ofcalled line terminals for said substations in said connectors, saidbanks subdivided and the terminals arranged therein in accordance withthe character of signaling current to which their associated substationsare adapted to respond, a movable terminal in each connector cooperatingwith each of its bank subdivisions, sources of signaling currentofdifi'erent character, means controlled by a calling line for operatinga selector and v connector b series of impulses to connect with 11 callsline, and means dependent For its operation upon the number of im Julscsin the series controlling the said so actor switch for selecting amovable terminal of the said connector switch and one of said sources.

16. In a tele hone system, a plurality of party lines, one 1 havin aplurality of substations some of whic are disconnected from theirrespective lines, a connector switch havinga contact bank containing aparticular contact for each substation, a trunk line, connections fromeach party line to the contacts corresponding to its connectedsubstations, and connections from said trunk line to the contactscorrespond ing to disconnected substations, whereby upon the operationof said connector to connect with a disconnected substation connectionwill be established with said trunk lino instead.

17. In a telephone system, a plurality of party lines, each having aplurality of substations some of which are disconnected from theirrespective lines, a connector switch having a contact bank containing aparticular contact for each substation, n trunk lino, connections fromeach party line to the contacts corresponding to its connectedsubstations, and connections from said trunk line to the contactscorresponding to disconnected substations whereby upon the operation ofsaid connector to connect with a disconnected substation connection willbe established with said trunk line instead and manually controlledmeans associatec with said trunk line for answering calls receivedthereovcr.

18. In a telephone system, a party line havin a plurality ofsubstations, a connector-switch at the exchange having a lurality ofcontact banks, a contact in one bank for a difi'erent one of saidsubstations, multiple connections from said line to said contacts, meansfor disconnecti any contact from its multiples, and a trun r lineextending to an operators position adapted for connection to suchdisconnected contact.

19. In a telephone system a plurality of party lines eac having aplurality of substations, a connector switch at the exchange having aplurality of contact banks, contacts for said substations in said banks,the substations on the same line having their contacts in differentbanks, multiple connections f-romeach line to the contacts correipondingto its several substations, means or disconnecting the contactcorresponding to any substation from its multiple connections, and atrunk extending to an operators position adapted for connection to saiddisconnected contact.

20. In a tele hone system a party lines eac having a plur lurality of'ty of subto tho multiple Contacts worr sponilmg to its sovci'nlsubstations. moons for (ii;-, -oi11iocting the multiple contactscorresponding to any substation from their connection to the line forthnt substation, and a trunk extending to an operators position mlaptmlfor con nest-ion to said disconnected contacts.

21. ln 1 telephone system, :1 party lino inwing a plurality ofsubstations. a wnnccto: switch at the exchange ha ving a plurality ofcontact banks, a contact in each hunk for it (lifi'erent one of saidsubstations, illiillipic connections from said line to said contacts anda trunk line, said contacts adapts! to ho separately disconnected fromtho lino and connected instead to soul trunk line.

22. In n telephone system, a plurality of party lines each having aplurality of substations, 8. conneotor switch at the exchange hai'in aplurality of contact hanks, con tacts .01 said substations in sai 1lhanks, tho substations on the some lino having their contacts indifiercnt hunks, multiple crninso tions from each line to the contactscorro spending to its several substations, and a trunk line, saidcontacts adapted to he sepw I'ittfil? discomicoteril from theirrospectivc multiple connections and connects-fl instead to suid trunkline,

23. In a tslephonc system, a plurality 0? party lines each having aplural ty oi' sub stations, a plurality of vonncclm' switchcs oi theexchangc each having a plurality of con" tact hanks, multiple contactsfor each sol) station in tho hanks of mid connectors, tin: substationson the some lino having their contacts in (lill'oronl; luu' in the sumsmnneotor, niultiplo connect, ms from flilSl). lino to the multiplecontacts corresponding to its several substations, arnl atrnnk line,suiii contacts adopterlto' be sepurstsly disconnected from their XGSPZin: misligile (i'fiv nections inei onncctml instcazl t, ill Li-uni;line.

24-, In a telephone system, a pioo lHH ing two substations onc m" sui i,vcilistutim 1 :lisconncctm'l, a vonnoolm switch in he change hav ing apair.- of contact hunks, a contact corresponding to ooo substation inone bank, a contact corresponding to the other substation in the otherbank, connections from said lino to the contact corresponding to theconnected substation, a trunk oxtonrl ing to an opomtoss position, andconnections from said. trunk to 'the contoc-t cox'rw sponrling to thedisconne ted substation.

25. In a telephone system, a 1' rality of party lines, each having apzuioli'tv of substations, cumin of soul substations disconnectcil fromlllel? respective lines, a connecfor switch :12 llw cxcllullgc having :1pluralii}? of comm lumiqicontacts corre ponding lo soul mil. Ho in no:hunks, the sub ionnow lino having their (onis in a mnnw tions from isemu-soonding to its loo summations. u trunk oxlending in no opvmim-"sposition, and conne tions from trunk to the contacts corresponding in Hosew'ei'al disconnected sol stations 2G. In l isphons svstcni, :1plurality of party lines, iuvli huvin a plurality of substutimis, wriuinof saiil suhslutions lllSTUIlurn-loll from thou" icspect vo lines, aplui'ulity ol" i'tlifililin. suit-cl. t the oxvlmngo Hl 'll halving n pPolity ol contact hanks, multiple moon-ls for each substation in thebunks of vemiiecim's. tho sulvsturions on lho sumo 7 inp their contactsin differ out hauls: ,4 tin. some connector, connections from can}; linoto the multiple contacts PM? ,;u. zuiing to its several connectedsulistutk, lruni; lino cxlom'lmg to an operator position, :nulmum-(lions from said ironic limp u. tluwnliwts oorrusponeh inn" to tierwwml illi'fi'ullllfillell substations 27. In t l-grhono system, o. partylino having two sol tutions, one of said substations disconi ii, :1connector switch at the mchangc havin :1 pair of contact hanks, aiul'ifiacfi cmr ,ionding to onc substation in one bank v1 correspondingto the n in the other hank, connccoi linc to the Contact orms 1 ii:culmortm'l su station, a -i l g to an opomtors position, 1 from saidtrunk to the con ul ng to the disconnected soliin said connectorcooperattact coi'ic station, n j

ing; with sovcml contact hooks, and :ncuns i'oz' iortzug wipers andoperating them Winn: so. al Ki whet-oh conncgtion may he ostnhlislml(lLlliJ' with t e OOUIlQCtGtl suhstation or with said trunk line.

28. In a lolophono system, a plurality of party lim c having a pluralityo soli- Sifiillills, iii Flll'lStfilZlHIlS lliscon no Ml Eb w lii'slions. a con noctor x mliango having a pluiu llt v oi ks, contactsooii'esponrh mg in ons in :uiul hunks, the

. Q1953 opox'ziliug moan n'hon sgiocted whereby con instill V Lotions owith cn nnr' i, a p pi: ms. cn i hating plurality of sub SlHlIUl S,i'tlluili oi id substations disconnected from their cspcctii'e lines, itplnrality of connector switches at the exchange each having :1plurality" of cont-art banks, multiple contacts for each substation inthe banks of said connectors, the substations on the same line havingtheir contacts in differ" ent bunks in tin: sane lgllllll'ljfl', connec'tions from each line to the znulliplc contacts.

ailing to its several connected Sill)- 21 in liln' extending icilinotion. iiil l connci'ztn'mn from said *5 to thc ci'intnctsmsrresponiling to i'eizii i wonncctcwi snow itions, wigjicrs cratingwith thcir t hanks and means for AL ing wi' iei (anointing them whensclected whcreli mnncctinn may he (stain lislicd cltllcl with mnnccted.substations or with suid trunk line.

3-5 In n teieplnmc system, a switch a plurulitv of iirushcs on saidswitch, conncctin; cir uit cxi ndinc to Said switch, multiple icllninnlsfor said connccting (illtlltllt which '1 may lic sclcctcd, and

acid E'lliftlilH dcp nilcnt tcrniiinils said switch is selected fordeten mining which of said brush sets Will be :onila-rnl npcriitiw.

- it}. In it telephone cystem. a switch, a plurality of of brushes forsaid switch, groans of telephone line contacts arrsn'igcd forcngiigcuient by said brushes respcctircl ii connccting circuit extendingto sand switc multiple terminal contacts for: said connectin; circuit,movablc contacts for makln connection with said terminal contacts, anmeans for determining which of said brush sets will be renderedoperative controlled b said movable contacts being en aged wit mic oranother of said multipfi: terminal ontracts.

3&2. in a iclcphonc system, a switch, a pinrality of sets of brushes forsaid switch. group-=5 of tclephone line contacts arranged for cngngelncnt by said brushes respectiv iy, lirnsl'i selecting means forrendering one or another of said brush sets operative, circuit extendingto said 'ies of multiple terminal coniiicts for said connccting circuit,movable contacts for making connection with said tcrminiil contacts, andmeans whereby the operation of said liIliSll selecting means iscontrolled lav *id movable contacts being engaged it .1 f A or anotherof said series of multiple terminal contacts.

325, In a tcicnlionc system, a switch, a plea rillit v oi brush sets onsaid switch. series of minim-ts, one for each of said brush sets, meansi'or selecting one of Said brush sets on which of said multiple' to makeconnections to a Wnmwl line. a pluralit of sources of ringing current ofdifferent characters, and means controlled by mid brush selecting meansfor dctcrniining which of said sonritcis of current will bc con nectedto a Wanted line.

34. In it tclcphonc system, ii switch. a plurality'of brushes on saidswitch, :1 connecting circuit (-Xteinling to said switch. mnltb picterminals for said connccting circuit at which said circuit may besclcctcd, moans dependent on which of said mnltiplc tcrminals saidswitch is sclcctcd at for determining which of said hrusli scts wiil licrcnilcrcd opera ive, a plurality of sources of ringing currcnt o1difi'crcut' clnirnctcrs, and means c ntrolled by said brush dctcrniiningmeans for connecting one or another of said sources of current to :1sclcctcil lHHSlI Ho 255. In :1 telephone system, an automatic connectorswitch, at party line ncccssiblc to said connector via as nanny pnths asthere are stations on the line, means for o crating said connector toconnect with said inc, and means operated automatically when theconnector is seized for predctcrmining over which path the connection isto he established.

36. Inc telephone system, an automatic connector switch, a party lineaccessible to said connector via as many paths as there are stations onthe line, it corresponding pluraliiy of generators of difl'crentelectrical character, means in said connector for selecting one of saidgenerators for connection to said line, and means operated automaticallywhen the connector is seized for predetermining the path over which theselected generator is to be connected.

37. In a tele hone system, an automatic connector switc 1, a party lineaccessible to said connector via. as many paths as there are stations onthe line, means for operating Said connector in accordance with twodigits in the call number of said line to connect therewith, and meansfor prcdetcrmining in accordance with a previous digit the path overwhich the connection is to be cstnb-- lished.

38. In a tcle hone system, an automatic connector switc 1, a party lineaccessible to said connector via as many paths as there are stations onthe line, a corresponding plurality of generatorsof difiercnt electricalcharacter, means for connecting any enercto; with said line, and meansin sai connector operated automatically when the connector is seized forsclectin a generator and for predctcrmining the pat 1 over which it isto be connected in accordance with a digit in the nnmbcr of said line.

39. In a. tale one system, an automatic connector SWlttSl, a party line,a plurality of stations on said line each provided with a set of fixedterminals in said. connector,

responsive to a single digit in the call nummeans for eperating saidconnector to con meet with said line via any set of fixed terminals, andselective ringing mechanism ber 0f the wanted station on said line toselert a frequency and also to predetcrmine the set uf terminals overwhich the line is be seized.

40. In a tale hone system, an automatic mnnector'switc 1,, party line, aplurality of statinns on said line each provided with a set of fixedterminals in said connector, means for operating said connector toconnect with said line via any set of fixed terminals and selectiveringing mechanism in said connector responsive to a digiL in the cannumber of' the wanted station on said line separate and independent fromthn digits whivn central the operation of said connector.

41, In a telephone system, a wiper swiich having a reiay selector withan auxiliary wiper adapted no complete a cincuit from the relay in thesucceeding switch am an m1x--

